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Finding the Fourth Proportional to 100,340.84, 150,480.54 and 69,375.08

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Solution

The fourth proportional to 100,340.84, 150,480.54 and 69,375.08 is: 104,041.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,340.84 : 150,480.54 = 69,375.08 : x
  2. Step 2: Convert to fraction form
    100,340.84/150,480.54 = 69,375.08/x
  3. Step 3: Cross multiply
    100,340.84x = 150,480.54 × 69,375.08
  4. Step 4: Simplify right side
    100,340.84x = 10,439,599,500.94
  5. Step 5: Solve for x
    x = 10,439,599,500.94/100,340.84
  6. Step 6: Final answer
    x = 104,041.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.